The Autonomic Nervous System is made up of two opposing units,
which are the sympathetic nervous system, and the parasympathetic nervous system

Sympathetic Nervous System: The sympathetic
nerrvous system is responsible for preparing your body for stress. The nerves from the symapthetic vervous sytemcome
from the ribs and a small part of the back

Parasympathetic Nervous System: The parasympathetic
nervous system restores the bodies normal balance. The nerves from this system exit directly from the brain or from
either the neck area or the tail bone. These nerves that exit diectly from the brain are called cranial nerves.